some tabs to spaces

cd src
    grep -P -n '\t' *.c | grep -v "1:"
    cd ../include
    grep -P -n '\t' *.h | grep -v "1:"
    cd ..

side note: win/Qt/*.cpp are full of tabs

sys/share/pcsys.c

@@ -131,7 +131,7 @@ dosh(void)
 #endif /* MICRO */
 
 /*
- * Add a backslash to any name not ending in /, \ or :	 There must
+ * Add a backslash to any name not ending in /, \ or : There must
  * be room for the \
  */
 void